EP2807013B1 - FILTRIERVORRICHTUNG ZUR GROßFLÄCHENFILTRATION VON FLUIDEN - Google Patents

FILTRIERVORRICHTUNG ZUR GROßFLÄCHENFILTRATION VON FLUIDEN Download PDF

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Publication number
EP2807013B1
EP2807013B1 EP13702777.7A EP13702777A EP2807013B1 EP 2807013 B1 EP2807013 B1 EP 2807013B1 EP 13702777 A EP13702777 A EP 13702777A EP 2807013 B1 EP2807013 B1 EP 2807013B1
Authority
EP
European Patent Office
Prior art keywords
filter
channel
housing
filtering device
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13702777.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2807013A1 (de
Inventor
Frank Hartmann
Christian Schröder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordson Holdings SARL and Co KG
Original Assignee
Nordson Holdings SARL and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nordson Holdings SARL and Co KG filed Critical Nordson Holdings SARL and Co KG
Publication of EP2807013A1 publication Critical patent/EP2807013A1/de
Application granted granted Critical
Publication of EP2807013B1 publication Critical patent/EP2807013B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6912—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a single rectilinearly reciprocating slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/254—Sealing means
    • B29C48/2545—Sealing means for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2554—Flow control means, e.g. valves provided in or in the proximity of filter devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
    • B29C48/2665—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated allowing small relative movement, e.g. adjustments for aligning the apparatus parts or for compensating for thermal expansion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
    • B29C48/2735—Cleaning; Purging; Avoiding contamination of filters using scrapers

Definitions

  • the plastic melt flows through at temperatures up to 350 ° C and pressures up to 300 bar in a arranged in a cylindrical filter housing filter element, which is designed as a large surface filter in the form of disc or candle filters.
  • Such large area filter in the form of a double filter are from the DE-C-19823765 or the DE-A-102005061770 known.
  • each individual filter with its cylindrical tubular filter housing can be pivoted out of its working position, in order then to pull out the filter inserts for changing the filter upwards.
  • Both filters are screwed in these embodiments to a supporting column frame or rigidly connected to each other via the switching valves.
  • the filter housings are connected to each other via the valves or a supporting pillar frame.
  • Such large area filter in the form of a double filter are from the DE-C-19823765 or the DE-A-102005061770 known.
  • each individual filter with its cylindrical tubular filter housing can be pivoted out of its working position, in order then to pull out the filter inserts for changing the filter upwards.
  • Both filters are screwed in these embodiments to a supporting SAülengestell or rigidly connected to each other via the switching valves.
  • the filter housings are connected to each other via the valves or a supporting pillar frame.
  • Filtration devices are known in each case, in which the filter elements are arranged in bolt-shaped carrier elements.
  • the bolt-shaped carrier elements are displaceable transversely to the flow direction and can be pushed out of the bore which extends completely through the housing. Due to the game between the outside of the bolt and the inner shell of the hole always present clearance, the gap dimensions are becoming larger due to manufacturing with increasing diameter, so that any extension of the throughput volume is not possible in this type.
  • Another limitation of the design is the high weight of the filter support bolts, so that they can usually be stored only horizontally, so that the hydraulic drive only has to work against the friction forces and not even against the mass forces of the bolt.
  • the present invention is therefore an object of the invention to provide a filtration device for large area filtration in particular of plastic melts, which is easy to clean and in which a filter cartridge can be replaced quickly and safely.
  • the filtration device should have a structure that can be heated homogeneously to avoid assembly and leakage problems due to different thermal expansions.
  • a filtration device for the large area filtration of fluids, in particular plastic melts, with the features of claim 1.
  • the filtering device comprises at least one drive unit and a solid filter housing with filter chamber, wherein the filter cartridge is to be introduced by a translational movement in a bore in the housing and a closure element on the filter cartridge closes the bore, whereby a closed filter chamber only formed.
  • the drive unit allows easy maintenance and cleaning of the filter element. As a result, the filter insert installed and removed and it can be made a cleaning of the filter chamber, without having to lower the temperature in the solid housing.
  • the housing is homogeneously tempered.
  • tempering holes for homogeneous heating are provided in the solid housing. The heating can be done hydraulically or electrically as well as via steam heating.
  • the filter device according to the invention is preferably suitable for plastic melts, for example for polyesters, polyethers or polyamides.
  • the filter device according to the invention is suitable for melting in a temperature range up to 350 ° C, preferably from 10 ° to 350 ° C, preferably from 10 ° to 300 ° C.
  • the invention comprises switchable to the filter housing or installable in the housing switching valves, with which the melt flow can be released or shut off via the flow channel connections to the filter. They are each assigned to the inlet or outlet channel.
  • valves are designed such that the filter cartridge can be cleaned by a backwash function with reverse flow in the filter cartridge.
  • flush function with reverse flow in the filter cartridge.
  • the filtration device according to the invention can be used in a continuous or discontinuous mode of operation.
  • the filtering device can function as a simple, discontinuous filter, in that the filter housing is designed as a solid housing with only one filter chamber for a single filter insert and with an attached drive unit for easy filter change. This design allows the absence of the use of valves to shut off or release the melt stream through the filter, provided that the system can be switched off for filter replacement.
  • the filter device as a continuously operating multiple filter, in particular as a double filter, have a simple, solid construction which can be heated very homogeneously in order to avoid assembly and leakage problems due to different thermal expansions.
  • such a double filter is operated in a parallel circuit of two filter cartridges in order to work when changing a filter cartridge without interrupting production.
  • the series connection of two or more filters is conceivable, for example, to achieve a step filtration, is roughly filtered in a first filter cartridge and finely filtered in a second filter cartridge.
  • double filters and multiple filters are lined-up filtering devices according to the invention in the above-described basic design, which, however, preferably have a common housing.
  • the multiple filtration devices have changeover valves to control the distribution of the fluid streams according to the desired mode of operation.
  • the filter cartridges of a double filtration device can be used for the filtration.
  • the second filter insert is unused in a waiting position in the second filter chamber.
  • the valves can be used to switch over to the ready-to-use, second filter insert of the double filtration device.
  • the filter inserts can be replaced at any time. So there is no waiting time to heat up parts of the housing, so that they can then be screwed together accurately.
  • the removal or replacement of a filter insert can be made very simple, since the filter support element with the filter insert only with the drive unit, such as a hydraulic cylinder has to be moved out of the housing.
  • the axes of the filter support element, the filter insert attached thereto and the filter chamber are aligned.
  • the use of the drive unit thus allows a removal of the filter insert without introducing transverse forces in the same, because the tensile force acts in the longitudinal axis of the filter cartridge.
  • the filter cartridges are usually lifted out of the housing with a crane, which can be connected to obliquely introduced forces with the risk of damage to the filter cartridge.
  • the drive unit provided for displacing the filter carrier element can be used to clean the filter chamber of melt.
  • cleaning scrapers, brushes or any other cleaning equipment are attached to the drive unit and moved with this in the filter chamber up and down. This leads to a simple, efficient and safe for the operator cleaning the hole, as this can be done mechanically in a hot housing.
  • valves which can advantageously be attached to a multiple filter, for example to a double filter, or can be integrated directly into the solid housing in another design, lies in selectively dispense the melt supply to or melt removal from one or the other of the filter chamber. In a middle position of the valve, the flow of material can be passed over both filter chambers of the housing.
  • a backwash function for self-cleaning of the filtering device can be provided by additional holes in the valve pin and in the housing.
  • the inlet valve is moved to a position in which the material supply to the filter chamber, which is to be backwashed, is interrupted. Instead, the remindbohrung is brought in the inlet valve in a hydraulic connection with this filter chamber and at the same time maintained the connection to the outlet channel on the outlet side.
  • the same backwashing can advantageously be designed such that dispensed in the inlet valve on the Ruthêtbohrung and instead a closable with a stopper or a simple shut-off valve backwashing is introduced directly into the filter chamber.
  • a closable with a stopper or a simple shut-off valve backwashing is introduced directly into the filter chamber.
  • For backwashing the inflow to the filter chamber must then be shut off with such a simpler inlet valve and the flow connection must be maintained on the outlet side.
  • An opening of the Ruthêtbohrung the Filter chamber by removing the plug or by opening a simple valve causes the flow reversal in the filter chamber with the associated cleaning effect of the filter medium.
  • the direction of flow in the filter device according to the invention is determined solely by the nature of the filter cartridges. Stacked disc filters are usually flowed through from the outside to the inside to prevent expansion due to the high pressure applied. Otherwise, the flow directions mentioned in the embodiments described below are also reversible.
  • FIG. 1 A simple filtration device 100 according to the invention, which is operated discontinuously, is shown in FIG.
  • It has a filter housing 20 with an inlet channel 23, an outlet channel 26 and an internal filter chamber. Furthermore, 20 tempering holes for receiving electrical heating cartridges are provided in the housing 20 to allow a homogeneous temperature control of the entire housing 20.
  • An attached drive unit 45 comprises in the illustrated embodiment a cylinder to be operated hydraulically, via which a filter support member 40 can be moved axially.
  • the filter support member 40 carries at its lower end a filter cartridge 10 which is formed in the illustrated embodiment cake-like with a central, flow-through support profile 12 and a plurality of stacked thereon disk filter elements 11, so-called leaf-disc filter elements.
  • the individual disc filter elements 11 each have an envelope of metallic filter fabric, which is spanned by a support frame, so that a cavity is formed. The fluid that has passed through the filter fabric flows from the clamped cavity into the central support profile 12, as known per se.
  • a closure element 41 is arranged on the filter carrier element 40 above the filter insert 10. It has a radial flow channel 43, which is deflected downwards and opens into the support profile 12 of the filter insert.
  • Fig. 2 shows the same filter device 100 in section. In the upper part of the formation of the drive unit 45 is clearly visible. The upper end of the filter support member 40 is formed as a piston 46.
  • Fig. 2 Recognizable are in Fig. 2 also the flow paths in the closure element 41 with an axial flow channel 42 and a radial flow channel 43, which is brought into coincidence with the housing-side outlet channel 26 when the filter insert 10 is inserted into the filter chamber 24.
  • the position of the closure element 41 in the production position is indicated by the dot-dashed rectangle.
  • the filter chamber 24 is formed by a bore in the housing 20, which is initially made continuously for manufacturing reasons and has been firmly closed down via an insert member 21.
  • An axial flow channel 22 in the closure element communicates with the inlet channel 23 in the housing 20 and opens into the filter chamber 24.
  • the mouth 25 of the housing bore or the filter chamber 24 is open when the filter cartridge 10 is pulled out.
  • the support profile 12 of the filter insert 10 be to the central axis of the filter support element 40 and whose direction of displacement is arranged in parallel, in particular with these aligned.
  • the closure element 41 is simultaneously lowered during the displacement of the filter support member 40 with the filter cartridge 10 into the filter chamber 24, so that the closure member 41, the mouth 25 of the upwardly open bore closes tightly and so a closed filter chamber 24 is formed.
  • the filter insert 10 is located in the filter chamber 24 and can be flowed through freely there.
  • the fluid passes through the filter fabric of the individual disc filter elements 11, from there into the central support profile 12 and then via the flow channels 42, 43 to the outlet channel 26 in the housing 20th
  • the filter support member 40 is pulled out with the closure member 41 and the filter cartridge 10 out of the filter chamber 24 so that the mouth 25 is open again.
  • the filter cartridge 10 is freely accessible and can be replaced or maintained.
  • a mechanical cleaning element such as a scraper or a wire brush can be attached to the filter support member 40 in order to clean the filter chamber can.
  • FIG. 3 shows a double-filtering device 100 ', which in principle consists of two part-filtering devices 100 according to the above with reference to FIGS. 1 and 2 described Embodiment, but these are connected by a common housing 20 '.
  • the filter support elements 40, 40 'of the double filter device 100' can be moved individually so that, for example, one of the filter inserts 10 'can be moved out of the filter chamber 24' for cleaning, while the other remains in production operation.
  • the double-filtering device 100 ' In order to distribute the fluid to the individual sub-filter devices, the double-filtering device 100 'has additional switching valves 60', 70 '.
  • the lower switching valve 70 ' is a division of the at an inlet channel 71' supplied fluid is made to the respective filter chambers.
  • the individual flow paths from the filter chambers to an outlet channel 61' can also be blocked such that one of the filter chambers can be open, while the other is used for the production operation.
  • the fluid enters the flow channel through an inlet sub-channel 23.1, which is fed via the switching valve 70 ' There and through it into the filter chamber 24. There it passes through the individual disc filter elements 11 of the filter cartridge 10 into the central support section 12 and via the flow channel 42 in the closure element 41 to the outlet part channel 26.1.
  • the right Operafiltriervoriques is in the maintenance position.
  • the filter chamber 24 ' is open at the top.
  • Corresponding switching positions on the switching valves 60 ', 70' ensure that no melt or another filtered fluid can escape into the filter chamber 24 'at the inlet and outlet part passages 23.2, 26.2.
  • Fig. 5 shows a section through the lower switching valve 70 'for the incoming flow and the flow channels in the bottom region of the filtration device 100'.
  • the bottom portion of the housing 20 is cut.
  • the round elements are the closure elements 21, 21 '(see. Fig. 4 ,) which make it possible to manufacture the filter chambers 24, 24 'in each case by a continuous bore in the housing 20' in a simple manner and then to close the one end permanently by the inserted closure element 21, 21 '.
  • the actual switching valve 70 ' consists of two parallel plates 72', 74 'and a slider 73' arranged therebetween, which is displaceable by means of a hydraulic or pneumatic drive 76 '.
  • the plate 72 ' has two pairs of obliquely extending sub-channels, which merge in pairs to the inlet sub-channels 23.1, 23.2.
  • the central inlet channel 71' is arranged in the opposite Plate 74 '.
  • the slider 73 ' has a central recess 75', which in the sectional view FIG. 5 is rectangular and allows various switch positions.
  • the recess would have the shape of a horizontal eight.
  • the three parallel, slit-shaped channels which are connected via common areas on the plate surfaces, allow a targeted control of the pairwise to an inlet part channel converging branch channels.
  • the upper switching valve 60 ' is of similar construction, but there are no 5, Quiltbohritch provided.
  • Fig. 6c leads at the inlet-side switching valve 70 'only to a supply of the left inlet part channel 23.2 and thus to operate only the left part filter device.
  • the outlet-side switching valve 60 ' only the left part filter device is connected to the outlet channel 61' via the left outlet part channel 26.2.
  • the backwash for the filter cartridge in the right filter chamber 24 is performed while maintaining production via the filter cartridge in the left filter chamber 24 '.
  • the melt flows from the inlet channel 71 'via the switching valve 70 in the left part of the inlet channel 23.2 and the left filter chamber 24 to the slide of the upper switching valve 60', which leads to the outlet channel 61 '.
  • the slide 63 ' is positioned so that it communicates with its recess 65' at the same time with both outlet part channels 26.1, 26.2, via the respective inner branch channel of the two V-shaped splayed apart passages, which together the outlet sub-channels 26.1, 26.1 form and which the example of the switching valve 70 'in FIG. 5 are recognizable.
  • the melt, together with the dirt particles detached from the filter insert can flow away via the outer of the two branch channels of the inlet part channel 23.1 into the backwash hole 77' and over to the outside of the switchover valve 70 '.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Filtration Of Liquid (AREA)
EP13702777.7A 2012-01-26 2013-01-26 FILTRIERVORRICHTUNG ZUR GROßFLÄCHENFILTRATION VON FLUIDEN Not-in-force EP2807013B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012100641A DE102012100641A1 (de) 2011-07-29 2012-01-26 Filtriervorrichtung zur Großflächenfiltration von Fluiden
PCT/EP2013/051521 WO2013110800A1 (de) 2012-01-26 2013-01-26 FILTRIERVORRICHTUNG ZUR GROßFLÄCHENFILTRATION VON FLUIDEN

Publications (2)

Publication Number Publication Date
EP2807013A1 EP2807013A1 (de) 2014-12-03
EP2807013B1 true EP2807013B1 (de) 2016-03-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13702777.7A Not-in-force EP2807013B1 (de) 2012-01-26 2013-01-26 FILTRIERVORRICHTUNG ZUR GROßFLÄCHENFILTRATION VON FLUIDEN

Country Status (6)

Country Link
US (1) US20150048016A1 (zh)
EP (1) EP2807013B1 (zh)
JP (1) JP6294833B2 (zh)
CN (1) CN104245274B (zh)
DE (1) DE102012100641A1 (zh)
WO (1) WO2013110800A1 (zh)

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CN114683376B (zh) * 2022-03-29 2023-10-31 安徽紫朔环境工程技术有限公司 一种用于净化工业烟气有害物质的陶瓷微孔滤体制备装置
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WO2013110800A1 (de) 2013-08-01
US20150048016A1 (en) 2015-02-19
JP6294833B2 (ja) 2018-03-14
JP2015509835A (ja) 2015-04-02
DE102012100641A1 (de) 2013-01-31
CN104245274A (zh) 2014-12-24
EP2807013A1 (de) 2014-12-03
CN104245274B (zh) 2016-11-09

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